安徽省某铜矿区周边农田土壤重金属污染风险评价
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中图分类号：X53；X820.4 文献标志码：A 文章编号：1672-2043（2025）08-2134-11 doi：10.11654/jaes.2024-0694
Risk assessment of heavy metals in farmland soils around a copper mining area in Anhui Province，China
laoqi¹²，SONG Changzhi²，LIANG Xuefeng²，PENG Yunying2*，HUANG Qingqing²，SUN Yuebing² （1.Collgeofousdnot，asAuralUieityanOa;eybator EnvironmentalPolutionPreventionandControl，MinistryofAgricultureandRuralAffairs（MARA）anjinKeyaboratoryofgro EnvironmentandAgroProductSafetyAgroEnvironmentalrotectionIstute，inistryofAgricultureandRuralAfis，ian ，China）
Abstract：Abstract：Toelucidateinvestigatetheinfluenceofmineralresourceexploitationonheavymetalenrichmentinsuoundng farmlandils，tisdigatedoetsdsaiarbiofaealsCdb，uCndiinl （0-20cm）offarmlandsoilsaroundthecopper mining area in Anhui Province.Thelevelsofheavymetals wereevaluatedbyusingsingle factorinexemerotegatedpoltioidex，oacculatiidex，ndotetialologicaliskidexurcenalysf byusingAbsolutePrincipal Component Sore-MultipleLinearRegresion（APCS-MLR）modelResultsshowed thatthestudyarea predominantlyexhibitedacidicsoil，withCd，Pb，Zn，Cu，Cr，ndNicontentsaveraging0.14-2.74，3.5-52.9，6.61-09.78，1.47 431.95，1.16-18.42， and ，respectively. Approximately 96.53% of the tested soil samples exceeded Cd risk screening value and 22.28% exceeded theCuscreeningvalueof SoilEnvironmental QualityRisk Control Standard forSoilContaminationof AgriculturalLand（GB15618—2018）.Cdwasidentifiedasslightormediumpolltedbasedonsinglefactorpolutionandgeoaccumulationindices，hileteNemerowindexindicatedoverallmedumpolltiondominatedbyCdandCu.otentialoloicalisk ssessmentshowedthatCdwasthemainecologicalriskfactorinthestudyarea，exhibitingamoderateeologicalrisklevel.APC-MR modelsourceanalysisindicatedthatsoilCdweremanlyfrommiing，CusourcesmainlyderivedfrominingndindustrialaciviisZn andPbweremailyroidstrysousandwhileCandNiwereprimarilyfomingsours.Ioncusio，dustrliii the copper mining area maylead to the risk of Cd pollution in the surrounding farmland.
Keywords： heavy metals; pollution evaluation; spatial distribution; APCS-MLR model
随着我国现代工业和农业飞速发展，土壤重金属污染导致的环境问题也日益受到关注。（剩余20658字）
